| Message ID | 20180318161503.27358-3-kai.heng.feng@canonical.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | Fix Ryzen/Raven Ridge USB ports do not work | expand |
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6efb018bd744..e20aa2b6e5ba 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -134,7 +134,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_find_chipset_info()) xhci->quirks |= XHCI_AMD_PLL_FIX; - if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43bb) + if (pdev->vendor == PCI_VENDOR_ID_AMD && + (pdev->device == 0x15e0 || + pdev->device == 0x15e1 || + pdev->device == 0x43bb)) xhci->quirks |= XHCI_SUSPEND_DELAY; if (pdev->vendor == PCI_VENDOR_ID_AMD)
BugLink: https://bugs.launchpad.net/bugs/1756700 The Dell Inspiron 5775 is a Raven Ridge. The Enable Slot command timed out when a USB device gets plugged: [ 212.156326] xhci_hcd 0000:03:00.3: Error while assigning device slot ID [ 212.156340] xhci_hcd 0000:03:00.3: Max number of devices this xHCI host supports is 64. [ 212.156348] usb usb2-port3: couldn't allocate usb_device AMD suggests that a delay before xHC suspends can fix the issue. I can confirm it fixes the issue, so use the suspend delay quirk for Raven Ridge's xHC. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> --- drivers/usb/host/xhci-pci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)